4.7 Article

Black phosphorus nanoflakes decorated hematite photoanode with functional phosphate bridges for enhanced water oxidation

期刊

CHEMICAL ENGINEERING JOURNAL
卷 425, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.131500

关键词

Hematite; Black phosphorus; Phosphate bridges; Photoelectrochemical; Water oxidation

资金

  1. National Natural Science Foundation of China [21808090, 51902139, U1932211]
  2. China Postdoctoral Science Foundation [2019M651727, 2019M651719, 2020T130754]
  3. Jiangsu University Foundation [18JDG019]
  4. Users with Excellence Program of Hefei Science Center CAS [2019HSC-UE002]
  5. Collaborative Innovation Center of Suzhou Nano Science Technology
  6. Jiangsu University

向作者/读者索取更多资源

A heterostructure photoanode integrating black phosphorus nanoflakes and hematite was successfully fabricated, with functional phosphate formed by the partial oxidation of black phosphorus improving the interfacial charge transfer and enhancing water oxidation performance. The well-matched band structures of black phosphorus and hematite, along with the highly-efficient oxygen evolution reaction activity of black phosphorus, significantly facilitate charge separation and transfer for enhanced water oxidation performance.
Black phosphorus (BP) as a promising two-dimension semiconductor has been widely investigated for energy storage and conversion. Herein, a heterostructure photoanode by integrating BP nanoflakes and hematite was fabricated, in which the functional phosphate by the partially oxidation of BP could tightly bridge hematite and BP and improve the interfacial charge transfer. The well-matched band structures of BP and hematite, as well as the highly-efficient oxygen evolution reaction (OER) activity of BP can significantly facilitate the charge separation and transfer for enhanced water oxidation performance. As a result, the as-prepared heterostructure exhibits a high photocurrent density of 3.02 mA cm(-2) at 1.23 V vs. RHE, much better than that of the sample without BP modification. Furthermore, a remarkable photocurrent density of 3.81 mA cm(-2) at 1.23 V vs. RHE with good photostability can be achieved after the loading of FeNiOOH cocatalyst. This study clearly shows the excellent application of BP for solar water splitting.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据